Nov 22, 2025
Bathymetry of the Oceans
by mastodon/[email protected]
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Bathymetry of the Oceans
by mastodon/[email protected]
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Bran the Blessed's height
(Source: Mabinogi - Branwen ferch Llyr)
If Bran is tall enough to wade across the Irish sea - and just tall enough that he has to tilt his head to breath - then we may be able to narrow down his precise height range.
The Irish Sea's average depth is 80-275 meters (262-900 feet).
Assuming he started walking from Herlech, Merionethshire in Gwynedd towards Ireland in a generally direct line with no weird detours
And using this Bathymetry from Researchgate.net (LINK)
Bran's height might be somewhere in the area of 80 to 100 meters (from 262 to 328 feet), since he may be wading through the shallower parts of the Irish Sea
Given that height - around the size range of the Statue of Liberty from base to torch - the proportional size of Bran's head would have been as large as a 3-4 story tall building.
These screenshots I took in Blender are the final product of a commission I worked on for over a year, of my client's planet Ayrum. These represent the planet as it appears at the Northern Spring Equinox, at various angles and different times of day. This project had multiple phases and produced many maps and figures, so I'll be making multiple posts about it over the course of multiple days, working from the earliest results up to the images used in these screenshots.
First, the tectonic history sequence, covering about 600 million years of activity. The colors of continental crust in the gif's top half represent which plate it will belong to in the end, and the colors used in the bottom half represent what plates they belong to at the time
With the tectonic history settled, it's easier to determine what the topography should look like. The two greyscale elevation maps start from the lowest trench depth and from sea level respectively, and the color-graded elevation map has dry land differentiated from bodies of water.
Dipping into Blender once again, with some screenshots where I used the color-graded elevation map as the image texture and the greyscale elevation map as the displacement texture, to emphasize the topography. This will be all for today, but there is much more to come. These maps were made for the user @umbrace-ramble, to whom I am very thankful for this commission and all the experience it inspired me to gain. Rendered in Photopea with the aid of Blender, screenshots taken in Blender, November 2022-January 2024
At the tail end of 2016 I had the pleasure of joining Research Vessel Falkor as an Artist-at-Sea for a three-week ocean crossing from Guam t
A friend just notified me that it is the annual Day of the Seafarer so here's a free comic about crossing the Pacific on an oceanographic research vessel to celebrate! (This voyage was also the source of the most popular thing I've ever put on Tumblr.)
Read the whole comic here.
NOTATIONS IN DRAWINGS
top image: note the elevation numbers in a topographic line drawing: https://socratic.org/questions/how-do-contour-lines-show-hills-and-depressions
topography and bathymetry: https://education.nationalgeographic.org/resource/bathymetry
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Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
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Ooh what if I did a bathymetry map of the Great Lakes for my next tattoo where would it look good? Upper back/shoulder maybe?
Manuscript map created by Heezen-Tharp depicting the early developments of the understanding of the ocean's bottom (1957)
Mediterranean bathymetry